Adjusting camshaft timing on left side (S63T2) (X5 M)

Special tools required: 

• 2 249 117
• 2 249 144
• 2 249 159
• 11 9 190
• 11 8 570
• 11 4 350
• 00 9 120

(cylinder bank 5 to 8) 

Necessary preliminary taste: 

• Remove left TIMING CASE COVER .
• Check TIMING  of the left camshafts.

Get set of special tools 2 249 117 ready for securing camshafts.

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Position special tool 2 249 144 on intake camshaft.

Position exhaust camshaft with special tool

2 249 159 and attach to special tool 2 249 144.

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Release central bolts (1 and 2) of intake adjuster and exhaust camshaft adjuster.

Installation note: 

Replace central bolts after releasing.

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Installation note: 

Coat contact surface of new central bolt (1) with 4.4  copper paste.

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Insert central bolt (1 and 2).

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Position engine with special tool 11 9 190 in front of special tool 11 8 570 as shown in graphic.

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Installation note: 

Tighten the central bolt (1) beginning with the intake camshaft.

Insert central bolt (1) of intake camshaft with special tool 11 4 350.

Joining torque 5 Nm  .

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Insert central bolt (1) of exhaust camshaft with special tool 11 4 350.

Joining torque 5 Nm  .

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Remove special tool 11 9 190.

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Turn the engine at the central bolt further until the special tool 11 9 190 can be positioned in the gear case cover.

The engine is now in the 150° crankshaft position before the TDC firing position of cylinder 1.

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Installation note: 

Tighten the central bolt (1) beginning with the intake camshaft.

Insert central bolt (1) of intake camshaft with torque.

Tightening torque of 30 Nm 

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Insert central bolt (1) of exhaust camshaft with torque.

Tightening torque of 30 Nm 

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Insert central bolt (1) of intake camshaft with special tool 00 9 120.

TORSION ANGLE ADJUSTMENT120°  .

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Insert central bolt (1) of exhaust camshaft with special tool 00 9 120.

TORSION ANGLE ADJUSTMENT120° 

Checking the timing: Remove special tool 2 249 117.

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Remove special tools 11 9 190 and 11 8 570.

Crank engine at central bolt twice in direction of engine rotation until engine returns to 150° before cylinder no. 1 firing TDC position  .

Secure vibration damper with special tools 11 8 570 and 11 9 190 in the 150° TDC firing position, cylinder 1  .

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Fit special tool 2 249 144 on intake camshaft and check timing adjustment.

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Place special tool 2 249 159 on the exhaust camshaft and check timing adjustment.

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Remove all special tools.

Assemble engine.